Gas-burner.



PATENTED MAR. 19, 1907.

P. KELLER. GAS BURNER.

APPLICATION FILED APRA, 190e.

2 SHEETS-SHEET l4 INVENTOR v WJ TNESSES 1H: Nnfmls Pers/es co., wAsHlNcroN, D. r:4

PATENTBD MAR. 1 9, 1907.-

E. KELLER. GAS BURNER.

APPLICATION FI'LBD APR. 4,1906.

2 SHEETS-SHEET 2.

INVENTOR Hs NORM: PETERS co., wAsmNaroN. D. c.

Unir Earns f i PETER KELLER, OF CHICAGO, ILLINOIS, ASSIGN OR OF ON E-HALF TO JOHN M. TIERNEY, OF CHICAGO, ILLINOIS.

GAS-BURNER.

Specification of Letters Patent.

Patented March 19, 1907.

Application filed April 4. 1906. Serial No. 309,772.

.To tu Lul/1,0111, t lit/,by coli/cern:

Be it known that I, PETER KELLER, a citizen of the United States, residing at Chicago, in thecounty of Cook and State of Illinois have invented certain Improvements in Cras- Burners, of which the following is a specification.

This invention relates to certain improvements in gas-burners, and has for its object to provide tor use in such burners meansfor regulating and controlling the supply of gas to the burner-tip, whereby a more even and uniform iiame is produced notwithstanding variations in gas-pressure at the service-pipe and whereby flickering of the liame at the tip is prevented when the gas-pressure is lowered.

rThe invention consists in certain novel features of the construction and combinations and arrangements of the several parts of the improved gas-burner, whereby certain important advantages are attained and the device is rendered simpler, cheaper, and otherwise better adapted and more convenient for use, all as will be hereinafter fully set forth.

The novel features of the invention will be carefully defined in the olaiins.

In the accompanying drawings, which serve to illustrate the invention, Figure l is a side elevation of an ordinary pillar-burner provided with my improvements. Fig. 2 is an axial section drawn to an enlarged scale and taken vertically through the improved burner f or illustration of the internal construction thereof. Fig. 3 is a detail view showing detached one of the gauze screens of the improved burner. Fig. l is a view showing detached and in plan the regulating-shell housed within the pillar of the improved burner. Fig. 5 is an under side view of the valve for operation in conjunction with said regulator-shell. Fig. 6 is an under side view of the regulator-shell detached. Fig. 7 is a View of the gas-check at the base of the regulatorshell and also detached. Fig. 8 is a view showing "a so-called candle-burner embodying my improvements. Fig. 9 is an axial section taken through the candle-burner and showing my improvements housed there-A in, and Fig. l0 is a view showing the applicationof my improvements within the base member of an ordinary mantle or incandescent gas-burner.

Refering first to Figs. 1 to 7, inclusive, 1 represents the tubular body portion of an ordinary pillar-burner, having a gas-passage 2 extended through it and having its'lower end interiorly screw-threaded, as shown at 3, for connection with the gas-fixture at the end of the service-pipe, the upper end of said body portion being constructed to receive a lava or other gas-tip in a well-known way, as seen at 4 in Fig. 1.

Midway of its length the body portion l of the pillar has an annular inwardly-directed shoulder, as seen at 5, which serves for holding in position in the gas-passage 2 a multiple screen of novel construction, which is clearly shown in Fig. 2 and comprises a circular screen 6, of wire-gauze' and of a diameter somewhat greater than the diameter of the gas-passage 2, across which it is extended. ln preparing this screen for insertion in the body portion of the pillar an annular fiange is provided around the marginal portion thereof, as shown at 7 in the drawing, being formed by pressing or bending downwardly the said edge portion 7 along the dotted line indicated at in Fig. 3, so that a cup shape is imparted to said screen, its pendent edge llange 7 being adapted when the screen is pressed in position in the body portion 1 and against shoulder 5 to engage upon the walls of said body portion to eli'ectively retain the screen in place.

8 indicates another circular screen, of fine wire-gauze, of less diameter than the screen 6 and having its edge portions engaged in the fabric of the pendent or flanged edge portions 7 of said larger screen 6, so that said lastnamed screen 8 may be inserted and held within the `first-named screen 6 primarily to the introduction of said first-named screen within the body portion 1 of the burner. In this way the introduction of the two wiregauze screens within the passage 2 is facilitated and a material economy in labor in assembling the parts is attained. 9 indicates a filtering-screen of cotton or asbestos gauze interposed between the wire-gauze screens 6 and 8 in the connection of these parts. rIhe multiple screen thus formed from the wiregauze screens 6 and 8 and the cotton or asbestos screen 9 is capable of being quickly and conveniently applied within the gas-passage 2 ofthe burner in such a way as to break IOO the force of the gas passing through the same and cause an ellective distribution of the same through said passage, so that blowing or lliclrering at the tip is prevented. The wire-gauze screens serve to hold the cotton or asbestos gauze 9 securely in position, and by the employment of said cotton or asbestos gauze a greatly-improved result is attained in the use of the improved burner.

In the gas-passage 2 below the multiple screen is arranged a regulator member, (indicated as a whole at 10,) which serves to regulate and control the supply of gas through said passage and to equalize the pressure despite variations in gas-pressure in the main, and said member comprises a body portion formed or pressed up from thin sheet metal with a pendent edge flange or skirt 11 extended around it and adapted, when the device is pressed Within the pillar, to tightly lit Within the walls of the gas-passage 2 thereof'.

12 represents the flattened dish-like top of the regulator shell or member, said top 12 being integral with said flange or skirt 1 1 and having a central elevated discharge portion or vent 13, raised above the top face of the member and provided with radial slitted vent-apertures 14, (herein shown as four in numben) which are extended from top to bottom of the portion 13.

rlhe discharge or vent portion 13 of the shell or member is provided with a central gas-discharge opening 15 in its apex, and 16 represents a valve ol disk-like lorm, which is adapted to close said opening 16 when in lowered position, but is adapted when elevated to permit the discharge or gas through opening 15 for supply to the burner-tip at the upper end of the pillar. Valve 16 has a centra] pendent stem .17 passed down through the opening 15 of the discharge portion 13 of the regulator shell or member and serving to guide the valve in its vertical movement. 18 is an annular or disk-like gas-check inserted in the passage 2 beneath the regulator shell or member 10 and provided with a central opening 19, adapted for the supply of gas to the interior of the shell or member, whence it escapes by way of openings 15 and 14. For retaining the check 18 and member 10 in position in the passage 2 the walls ol the pillar are inwardly crimped or swaged, as shown at 21, whereby an annular shoulder 20 is produced, whereon the check 18 rests at its edge portion. In the crimping or swaging of the pillar it is evident that any desiredlettering or marking may be applied to the exterior of the pillar, as shown in Fig. 1, and in this way a material economy is ellected in manufacture.

In the operation of the improved burner when the gas-pressure rises the resistance of the valve 16 will be opposed to prevent excessive escape of gas from the interior of the shell 1() by 'Way of opening 15 and also to lessen the area or' the superposed multiple screen, which is leftlfree for the flow of gas to the burnertip, whereby the pressure at which the gas is supplied to the tip is materially reduced. W nen the gas-pressure falls, the valve 16 also falls by gravity, closing the opening 15, and while the valve is in lowered position gas may escape by way of the openings 14C lll in tne sides of the raised vent or discharge portion 1.3 of the shell 10, so that the supply of gas will not be wholly cut oli' from tne burner-tip. The employment of these slitted openings 14 in portion 13 also serve to prevent liicxering of the light at the tip, which is very apt to occur where no such means are provided.

rlhe improved burner is of an extremely' simple and inexpensive nature and is especially well adapted for use by reason of the economy in the use of gas arlorded by its employment and also by reason of the uniformity ol illumination and freedom Afrom flickering due to the improved construction, and it will also be evident from the above description that my improvements are not limited to employment in connection with pillarburners alone, but may also be used in connection with other forms of gas-burners. For example, in Figs. 8 and 9.1 have shown my improvements applied for use to what is commonly known as a candle-burner,7 wherein the pillar or tube leading 'from the 'xture to the tip and shown at 1a is substantially uniform in diameter throughout. In this form of burner the upper shoulder for engagement with the multiple screen is formed by an annular' swage or crimp 5a produced around the burner-tube. The arrangement is otherwise similar to that above described. In Fig. 1() l have also shown my improvements applied for use to the base member 1h of an ordinary mantle or incandescent burner, the top of which has a screwthread 3 for connection 'with the Bunsen tube of the burner.

Having thus described my invention, what 1 claim, and desire to secure by Letters Patent, is-

l. A gas-burner having a gas-passage and provided with an annular inturned shoulder, a multiple screen extended across said passage and engaged 'with said shoulder, said screen comprising parallel wire-gauze screens of different diameter, the larger having a pendent edge flange engaged with the walls of the gas-passage and the smaller screen having edge portions engaged in the fapric of the pendent flange of the larger screen to hold the screens in relation and a fibrous packing interposed between said wire-gauze screens,

a regulator-shell extended across the passage and having a central raised gas discharge or vent portion the apex of which has a central opening and the sides of which have slitted openings radiating from said central openlIO tion t0 control the flow of gas through the ing, and a valve having guiding means and adapted to seat on the apex of said vent poropening at the apex of said vent portion.

2. A gas-burner having a body portion provided with a gas-passage, a regulatorshell extended aoross the passage and having a central raised gas discharge or vent portion the apex of which has a Central opening and the sides of which have slitted openings radiating from said central opening, a valve having guiding means and adapted to seat on the apex of said vent portion to control the flow of gas through the opening of the apex thereof, and a disk-like gas-cheek extended across I the gas-passage below the regulator-shell and having a central opening affording supply of gas to said shell, the wall of said gas-passage having an annular inwardly crimped or swagedportion forming an annular nturned shoulder below said disk-like gas-cheek and whereon the edge portions of the cheek are rested.

In testimony whereof I have hereunto signed my name7 at Chicago, Illinois, this 1st day of March7 1906, in the presence of two subscribing witnesses.

PETER KELLER.

Witnesses J. D. CAPLINGER, C. B. STODDARD. 

